com.cinchapi.concourse.util

Class ConcurrentLoadingQueue<E>

Object

AbstractCollection<E>

AbstractQueue<E>

ConcurrentLinkedQueue<E>

ConcurrentLoadingQueue<E>

All Implemented Interfaces:

Serializable, Iterable<E>, Collection<E>, Queue<E>

@ThreadSafe
public class ConcurrentLoadingQueue<E>
extends ConcurrentLinkedQueue<E>

A ConcurrentLinkedQueue that uses a specified supplier Callable to dynamically load elements into the queue when a read request is made and the queue is empty.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
static <E> ConcurrentLoadingQueue<E>	create(Callable<E> supplier) Return a new ConcurrentLoadingQueue that uses the supplier to populate the queue on demand.
static <E> ConcurrentLoadingQueue<E>	create(Collection<E> collection, Callable<E> supplier) Return a new ConcurrentLoadingQueue that initially contains the elements of the given collection in traversal order of the collection's iterator and uses the supplier to populate the queue on demand.
E	peek()
E	poll()

Methods inherited from class ConcurrentLinkedQueue

add, addAll, contains, isEmpty, iterator, offer, remove, size, spliterator, toArray, toArray

Methods inherited from class AbstractQueue

clear, element, remove

Methods inherited from class AbstractCollection

containsAll, removeAll, retainAll, toString

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface Queue

element, remove

Methods inherited from interface Collection

clear, containsAll, equals, hashCode, parallelStream, removeAll, removeIf, retainAll, stream

Methods inherited from interface Iterable

forEach

Method Detail

create

public static <E> ConcurrentLoadingQueue<E> create(Callable<E> supplier)

Return a new ConcurrentLoadingQueue that uses the supplier to populate the queue on demand.

Parameters:

supplier -

Returns:

the ConcurrentLoadingQueue

create

public static <E> ConcurrentLoadingQueue<E> create(Collection<E> collection,
                                                   Callable<E> supplier)

Return a new ConcurrentLoadingQueue that initially contains the elements of the given collection in traversal order of the collection's iterator and uses the supplier to populate the queue on demand.

Parameters:

collection -

supplier -

Returns:

the ConcurrentLoadingQueue

peek

public E peek()

Specified by:

peek in interface Queue<E>

Overrides:

peek in class ConcurrentLinkedQueue<E>

poll

public E poll()

Specified by:

poll in interface Queue<E>

Overrides:

poll in class ConcurrentLinkedQueue<E>